CaptLeslie
Member
- Joined
- Apr 15, 2003
- Posts
- 21
Why is the transition level fixed at 18,000 feet in the US?
This is not the case in most other countries. Europe is considering having a fixed level. Some have suggested 10.000' while others say – lets do the same as the US.
Is there anyone who knows why we decided to select exactly 18.000 feet in the US (and not another fixed number)?
This is not the case in most other countries. Europe is considering having a fixed level. Some have suggested 10.000' while others say – lets do the same as the US.
Is there anyone who knows why we decided to select exactly 18.000 feet in the US (and not another fixed number)?